Find the correct combination of the words that should replace each other to make both sentences contextually meaningful.
(I) The park was dismayed (A), and we adored (B) walking around and taking in the reparation(C);
(II) we were sublime (D) to find out that the main attraction (E) was closed for scenery (F).

To determine the correct combination of words that need to be swapped to make both sentences contextually and grammatically correct, let us analyze the sentences step-by-step.

Original Sentences:
(I) The park was dismayed (A), and we adored (B) walking around and taking in the reparation (C);
(II) we were sublime (D) to find out that the main attraction (E) was closed for scenery (F).

Step 1: Analyze Sentence (I)
- "The park was dismayed (A)": A park is an inanimate object and cannot feel "dismayed" (which means feeling distress or disappointment). A person or group of people, however, can feel dismayed.
- "...taking in the reparation (C)": "Reparation" means making amends for a wrong one has done. This does not fit contextually with walking around a park. A word like "scenery" (F) would make much more sense here, as people walk around parks to enjoy the scenery.

Step 2: Analyze Sentence (II)
- "we were sublime (D) to find out that the main attraction (E) was closed...": "Sublime" means of such excellence or grandeur as to inspire great admiration. Saying "we were sublime to find out..." is grammatically and contextually incorrect. If we swap "dismayed (A)" and "sublime (D)", we get "we were dismayed to find out that...", which makes perfect sense because finding out an attraction is closed would cause disappointment. Consequently, "The park was sublime (A/D)" describes the park beautifully.
- "...closed for scenery (F)": An attraction is not closed "for scenery." However, it can be closed "for reparation (C)" (meaning maintenance or repairs). Swapping "reparation (C)" and "scenery (F)" yields: "...taking in the scenery (F)" in the first sentence and "...closed for reparation (C)" in the second sentence. Both of these are contextually meaningful.

Step 3: Verify the Swapped Sentences
After swapping (A) with (D) and (C) with (F), we get:
(I) The park was sublime (D), and we adored walking around and taking in the scenery (F);
(II) we were dismayed (A) to find out that the main attraction was closed for reparation (C).

Both sentences are now completely logical and grammatically correct.

Therefore, the correct combination of swaps is (A)- (D) and (C)- (F).